Senior QA Engineer - NTN/5G Automation & Performance

Kardow in Mountain View seeks a QA Engineer with 6-8 years of NTN/NR/LTE/IMS protocol stack testing. You will drive automated test development in Python and Shell, implement testing strategies for NTN, Skylo/Starlink, telephony and eSIM, and perform end-to-end validation of NR/LTE/IMS call flows. You will analyze logs with QXDM/QCAT and coordinate triage with field teams, using Keysight/UxM and Anritsu test gear to ensure robust network performance and feature validation.